#	Chain	Domain ID	Range	Family	Classification
1	A	e3c6kA5	A:7-104	SpmSyn_N	331 → 331.10 → 331.10.2
2	A	e3c6kA2	A:176-367	Spermine_synth	2003 → 2003.1 → 2003.1.5
3	A	e3c6kA3	A:108-175	Spermine_synt_N	3699 → 3699.1 → 3699.1.1
4	B	e3c6kB5	B:7-104	SpmSyn_N	331 → 331.10 → 331.10.2
5	B	e3c6kB2	B:176-368	Spermine_synth	2003 → 2003.1 → 2003.1.5
6	B	e3c6kB3	B:108-175	Spermine_synt_N	3699 → 3699.1 → 3699.1.1
7	C	e3c6kC5	C:7-104	SpmSyn_N	331 → 331.10 → 331.10.2
8	C	e3c6kC3	C:108-175	Spermine_synt_N	3699 → 3699.1 → 3699.1.1
9	C	e3c6kC4	C:176-368	Spermine_synth	2003 → 2003.1 → 2003.1.5
10	D	e3c6kD5	D:7-104	SpmSyn_N	331 → 331.10 → 331.10.2
11	D	e3c6kD2	D:176-367	Spermine_synth	2003 → 2003.1 → 2003.1.5
12	D	e3c6kD3	D:108-175	Spermine_synt_N	3699 → 3699.1 → 3699.1.1

ECOD domains (colored by index)Unclassified protein regionsNucleic acids (RNA/DNA)Ligands/cofactors